virus detected in the laptop. help!

yeah, don't know much about this stuff about removing virus using avg. i can't and don't understand what it says but it's like this:

object name: C:\Windows\explorer(3728)
detection name: Virus identified Worm/Autorun.CL
object type: process
SDK type: core
result: infected


T_T guys please help me with this. the virus was not moved to the virus vault. i don't know what to choose between the two options. to remove the selected infection or remove unhealed infection.

ugh! i don't really understand. don't know what to with this. what will happen if i delete the virus? will the system crash?

please help.

thanks!